US5125772A - Single cut reamer with chip guiding device - Google Patents

Single cut reamer with chip guiding device Download PDF

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Publication number
US5125772A
US5125772A US07/319,620 US31962089A US5125772A US 5125772 A US5125772 A US 5125772A US 31962089 A US31962089 A US 31962089A US 5125772 A US5125772 A US 5125772A
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US
United States
Prior art keywords
base body
guide strip
reamer
guide
zone
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
US07/319,620
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English (en)
Inventor
Dieter Kress
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Mapal Fabrik fuer Praezisionswerkzeuge Dr Kress KG
Original Assignee
Mapal Fabrik fuer Praezisionswerkzeuge Dr Kress KG
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Filing date
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Application filed by Mapal Fabrik fuer Praezisionswerkzeuge Dr Kress KG filed Critical Mapal Fabrik fuer Praezisionswerkzeuge Dr Kress KG
Assigned to MAPAL FABRIK FUR PRAZISIONSWERKZEUGE DR. KRESS KG, OBERE BAHNSTRASSE 13, 7080 AALEN, FED. REP. OF GERMANY reassignment MAPAL FABRIK FUR PRAZISIONSWERKZEUGE DR. KRESS KG, OBERE BAHNSTRASSE 13, 7080 AALEN, FED. REP. OF GERMANY ASSIGNMENT OF ASSIGNORS INTEREST. Assignors: KRESS, DIETER
Assigned to MAPAL FABRIK FUR PRAZISIONSWERKZEUGE DR. KRESS KG reassignment MAPAL FABRIK FUR PRAZISIONSWERKZEUGE DR. KRESS KG ASSIGNMENT OF ASSIGNORS INTEREST. Assignors: KRESS, DIETER
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Publication of US5125772A publication Critical patent/US5125772A/en
Anticipated expiration legal-status Critical
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23D—PLANING; SLOTTING; SHEARING; BROACHING; SAWING; FILING; SCRAPING; LIKE OPERATIONS FOR WORKING METAL BY REMOVING MATERIAL, NOT OTHERWISE PROVIDED FOR
    • B23D77/00—Reaming tools
    • B23D77/02—Reamers with inserted cutting edges
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23D—PLANING; SLOTTING; SHEARING; BROACHING; SAWING; FILING; SCRAPING; LIKE OPERATIONS FOR WORKING METAL BY REMOVING MATERIAL, NOT OTHERWISE PROVIDED FOR
    • B23D2277/00—Reaming tools
    • B23D2277/20—Number of cutting edges
    • B23D2277/201—One
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23D—PLANING; SLOTTING; SHEARING; BROACHING; SAWING; FILING; SCRAPING; LIKE OPERATIONS FOR WORKING METAL BY REMOVING MATERIAL, NOT OTHERWISE PROVIDED FOR
    • B23D2277/00—Reaming tools
    • B23D2277/28—Chip collectors
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23D—PLANING; SLOTTING; SHEARING; BROACHING; SAWING; FILING; SCRAPING; LIKE OPERATIONS FOR WORKING METAL BY REMOVING MATERIAL, NOT OTHERWISE PROVIDED FOR
    • B23D2277/00—Reaming tools
    • B23D2277/30—Chip guiding means
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23D—PLANING; SLOTTING; SHEARING; BROACHING; SAWING; FILING; SCRAPING; LIKE OPERATIONS FOR WORKING METAL BY REMOVING MATERIAL, NOT OTHERWISE PROVIDED FOR
    • B23D2277/00—Reaming tools
    • B23D2277/46—Guiding pads
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T408/00—Cutting by use of rotating axially moving tool
    • Y10T408/44—Cutting by use of rotating axially moving tool with means to apply transient, fluent medium to work or product
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T408/00—Cutting by use of rotating axially moving tool
    • Y10T408/44—Cutting by use of rotating axially moving tool with means to apply transient, fluent medium to work or product
    • Y10T408/45—Cutting by use of rotating axially moving tool with means to apply transient, fluent medium to work or product including Tool with duct
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T408/00—Cutting by use of rotating axially moving tool
    • Y10T408/89—Tool or Tool with support

Definitions

  • the present invention relates to a single-blade reamer with a cutter plate attached to a base body.
  • Single-blade reamers of the recited kind are for example known from the German Patent Application Laid Out DE-AS 1,922,131. They are characterized by a cutter plate or, respectively, a cutter blade, and two guide strips disposed at the circumferential face of the base body of the reamer.
  • the first guide strip of the cutter follows by about 40 to 45 degrees, as seen in rotation direction, and the second guide strip is disposed opposite to the blade.
  • Such a reamer is supported in the borehole to be machined at the blade and at the two guide strips.
  • the final dimensions of the borehole to be machined result from the distance of the blade relative to the second guide strip.
  • the borehole dimension is only accurate, if the second guide strip, disposed opposite to the cutter plate, rests at the borehole wall.
  • chips generated during the premachining, remain in the borehole, then these chips can pass into the intermediate space between the bore wall and the circumferential face of the base body of the reamer, which intermediate space is delimited by the cutter plate and a first guide strip, following at a distance to the cutter plate or, respectively, by a first and second guide strip, and can get jammed at this location. If the chips have a corresponding thickness and shape, then the bore diameter is thereby changed which, in a standard case, is defined by the distance between the cutter blade and the oppositely disposed surface of the second guide strip. In addition, the surface quality of the bore wall can be substantially interfered with by such chips included from the premachining stage.
  • the present invention provides for a single-blade reamer comprising a base body adapted to form a base for a reamer structure.
  • a cutter plate is attached to the base body.
  • a first guide strip is attached to the base body and disposed at the circumference of the base body.
  • a second guide strip is attached to the base body and disposed at the circumference of the base body angularly remote relative to the cutter blade.
  • a chip-guide device is disposed angularly between the cutter blade and the second guide strip disposed angularly remote relative to the cutter blade. Said chip guide device follows the cutter blade at an angular distance as seen from a point of a fixed external coordinate system when the reamer is rotating in a proper cutting direction.
  • a method of drilling bores comprises the forcing of a base body against a structure to be drilled.
  • the base body is adapted to form a base for a reamer structure with a cutter plate attached to the base body.
  • a first guide strip is attached to the base body and disposed at the circumference of the base body.
  • a second guide strip is attached to the base body and disposed at the circumference of the base body angularly remote relative to the cutter blade.
  • the base body is rotated. Chips are generated with the cutter blade. Chips generated by the cutter blade pass in general into the chip space, which is formed by the face of the base body running at an inclined angle toward the blade and by the borehole wall.
  • Chips passing accidentally into the intermediate space between base body of the reamer and the borehole wall are collected and guided with a chip-guide device disposed angularly between the cutter blade and the second guide strip disposed angularly remote relative to the cutter blade.
  • Said chip guide device follows the cutter blade at an angular distance as seen from a point of a fixed external coordinate system when the reamer is rotating in a proper cutting direction.
  • the chips are collected and guided with the chip-guide device disposed angularly between the cutter blade and one first guide strip disposed angularly close relative to the cutter blade.
  • the chips are collected and guided with the chip-guide device disposed angularly between one first guide strip and the second guide strip disposed angularly opposite to the cutter blade.
  • the chips not collected and guided by the chip guide device are collected and guided with a safety zone serving as a zone for safe elimination of remaining chips and following to the trough and the steep rise at an angular distance, as seen from a point of a fixed external coordinate system when the reamer is rotating in a proper cutting direction.
  • Said safety zone coincides for practical purposes with the circumferential face of the base body.
  • Chilling agent is fed through a chilling-agent feed channel to a groove disposed within the region of the safety zone.
  • An advantage of the invention single-blade reamer includes that chips, which fall between the cutter blade and the following first guide strip or, respectively, between the first and second guide strip, are guided such that they cannot pass between the bore wall and the second guide strip. It is thereby assured that an optimum borehole surface with an exact processing dimension is achieved, even if chips from the premachining still remain in the borehole at the time when the fine processing is started.
  • a trough or vat which includes several zones or, respectively, regions of different depth, and is disposed between the two guide strips, which trough lowers slowly while advancing in circumferential direction, and as seen in the opposite direction to the rotation direction of the reamer into a first angular zone, in the direction of the rotation axis of the reamer and which finally quickly rises again over a second angular zone of the tool.
  • the chips enclosed between the bore wall and the base body of the reamer are received by the trough and thus cannot drive the reamer away from its predetermined position.
  • the friction exerted by the borehole wall during the rotation of the reamer onto the enclosed chips is furthermore reduced such that the chips can also not pass between the second guide strip and the bore wall.
  • a region serving as a safety zone follows to the trough in the direction opposite to the rotation motion direction, which region prevents that chips, protruding from the trough, reach between the guide strip and the bore wall.
  • a groove is provided which is disposed in the safety zone and which is connected to a chilling-agent feed line.
  • the chilling agent fed into this zone generates a flow, which keeps the chips away from the guide strip joining immediately at this zone.
  • FIG. 1 is a front elevational view of a conventional reamer disposed in a borehole
  • FIG. 2 is a front elevational view of a single-blade reamer disposed in a borehole with a chip-guide device disposed between the guide strips;
  • FIG. 3 is a single-blade reamer according to FIG. 2, in part as a sectional view, where the chilling-agent feed groove can be recognized;
  • FIG. 4 is a perspective view of the single-blade reamer illustrated in FIGS. 2 and 3.
  • FIG. 5 is a substantially enlarged sectional view of a single-blade reamer similar to the view of FIG. 3, however where a sump is disposed between the blade and a first guide strip.
  • a single-blade reamer with cutter plate attached to a base body and exhibiting at least one cutter blade and two guide strips, disposed at the circumference of the base body. Chips generated by the cutter blade pass in general into the chip space, which is formed by the face of the base body 2, running at an inclined angle toward the blade 5, and by the borehole wall.
  • a chip-guide device 8, 9, 10, 11, 12, 48, 19, 50, 51 is disposed angularly between the cutter blade 5, 45 and one second 7, 47 guide strip disposed angularly remote relative to the cutter blade 5, 45.
  • Said chip guide device 8, 9, 10, 11, 12, 48, 19, 50, 51 follows the cutter blade 5, 45 at an angular distance as seen from a point of a fixed external coordinate system when the reamer 30 is rotating in a proper cutting direction.
  • the chip-guide device 48, 49, 50, 51 can be disposed angularly between the cutter blade 45 and one first guide strip 46 disposed angularly close relative to the cutter blade 45.
  • the chip-guide device 8, 9, 10, 11, 12 can be disposed angularly between one first guide strip 6 and the second guide strip 7 disposed angularly opposite to the cutter blade 5.
  • the chip-guide device can be formed into a circumferential face of a base body 20 as a sump 8, 9, 10, 48, 49, 50.
  • the sump 8, 9, 10, 48, 49, 50 can exhibit several zones of different depth.
  • a trough 8, 48 of the sump 8, 9, 10, 48, 49, 50 can lower slowly toward the rotation axis of the reamer 30 in a first angular zone representing the trough 8, 48 following a front edge of the sump 8, 9, 10, 48, 49, 50 at a varying angular distance as seen from a point of a fixed external coordinate system when the reamer 30 is rotating in a proper cutting direction.
  • the sump can finally steeply rise again in a second angular zone 9, 49.
  • a safety zone 10, 50 can be provided, serving as a zone for safe elimination of remaining chips, and can follow the trough 8, 48 and the steep rise 9, 49 at an angular distance, as seen from a point of a fixed external coordinate system, when the reamer 30 is rotating in a proper cutting direction.
  • Said safety zone 10 can coincide for practical purposes with the circumferential face of the base body 20.
  • a groove 11, 51 can be disposed within the region of the zone 10, 50 and can be connected to a chilling-agent feed channel 12.
  • the chip-guide device can extend at least over the length of the guide strips 6, 7, 46, 47.
  • FIG. 1 allows to recognize that, during the fine processing of boreholes, there are chips 1, which can pass from the preceding processing stage between the base body 2 of the reamer 3 and the borehole wall 4, and in fact in the space delimited by the cutter plate or, respectively, the cutter blade 5, and the following first guide strip 6, and/or in the space delimited by the first and second guide strips 7. According to assignee's present technology, the chips can thus get jammed between the base body and the borehole wall 4, such that the final dimension of the bore deviates from the predetermined set value. In addition, the surface of the processed borehole can be damaged and interfered with.
  • FIG. 2 illustrates a front view of a reamer 30, according to the invention, with a chip-guide device, which is formed as a trough 8 or vat disposed between the guide strips.
  • a chip-guide device which is formed as a trough 8 or vat disposed between the guide strips.
  • the same parts are designated with the same reference numerals in the various figures. It can be recognized from the front view of FIG. 2 that the trough 8 in the first angular zone relative to the rotation axis lowers slowly and gradually in the direction of the rotation axis of the reamer 30 and that the trough finally ends in a steep shoulder 9 over a second angular zone. Thus, the space between the bore wall and the base body 20 of the reamer gradually expands in the first angular zone of the trough 8.
  • Chips 1 which have passed between the reamer and the bore wall 4, are received and carried along by the trough 8 of the rotating reamer 30.
  • the steeply rising shoulder 9 follows to the slowly falling trough 8. This prevents that the chips, which have collected in the trough 8, migrate and move in the direction of the guide strip 7, disposed opposite to the cutter blade 5.
  • the second angular zone passes into a further angular zone, which is a safety zone 10, which safety zone 10 prevents that chips, beyond the shoulder 9, attach themselves at the second guide strip 7 and damage the second guide strip 7.
  • FIG. 3 A groove 11 of a chip-discharge device is illustrated in FIG. 3, where again the same parts have been designated with the same reference numerals, and where the groove 11 is disposed in the safety zone 10.
  • the chip-discharge device is connected to a chilling-agent feed channel 12, compare FIG. 4.
  • a chilling-agent feed channel 12 compare FIG. 4.
  • FIG. 4 The perspective illustration of the single-blade reamer according to FIG. 4 illustrates the transition of the groove 11 into a chilling-agent feed channel 12.
  • the formation of the chip-guide device becomes particularly clear from this figure.
  • the trough of the chip-guide device extends over a region which is longer than compared to the guide strips 6, 7.
  • chip-guide device with decreased dimensions can also be disposed between the cutter blade 5 and the first guide strip 6. It is further possible to provide a chip guide device, both between the cutter blade 5 and the first guide strip 6, as well as between the two guide strips 6 and 7.
  • FIG. 5 illustrates an embodiment where the chip-guide device 48, 49, 50, 51 is not disposed between the two guide strips 46, 47, but instead between the cutter blade 45 and the first guide strip 46.
  • the chip guide device 48, 49, 50, 51 of FIG. 3 is formed so small that it can be disposed between the blade 45 and the first guide strip 46, i.e. the extension of the chip guide device 48, 49, 50, 51 along the circumferential area of the reamer is substantially smaller than the extension of the chip guide device 8, 9, 10, 11 disposed between the first guide strip 6 and the second guide strip 7.
  • the cross-section of the chip-guide device between the cutter plate or, respectively, the blade 45, and the first guide strip 46 corresponds to the cross-section illustrated in FIGS. 2 and 3.
  • the disposition of the guide strips 6, 7, 46, 47 is substantially independent of the position of the chip sump.
  • a cooling agent feed can be provided at a geometrical location (FIG. 5) relative to the sump location which corresponds to the respective relative positioning of the cooling agent feed and the sump in the embodiment of FIG. 3.
  • chips generated during the preprocessing steps, and which have remained in the bore and passed into the intermediate space between the base body and the reamer, can be safely guided and led away by the chip-guide device, such that they do not exert a negative influence onto the final diameter of the borehole and such that they do not interfere with the fine processing quality of the borehole wall. It has been found that, even in case of rotation speeds of 3000 rpm, the chips, which have penetrated between the reamer and the bore wall, can be safely guided.
  • the single-blade reamer has preferably a base body which is formed as a cylinder section, where the cross-section of the cylinder exhibits a substantially planar surface corresponding to a chord of a rotation cylinder circle disposed in front of the cutter blade, and having a length of from about 1.3 to 1.7 times the radius of the single-blade reamer and preferably between 1.4 and 1.6 times the radius of the single-blade reamer.
  • the second guide strip is preferably disposed at an angle from about 30 to 60 degrees away relative to the cutting edge of the cutter blade.
  • the second guide face is preferably disposed at an angle from about 175 to 185 degrees away from the cutting edge of the cutting blade.
  • the groove for the chilling fluid is preferably disposed from about 20 to 30 degrees ahead of the second guide strip, and more preferably from about 25 to 30 degrees ahead of the second guide strip.
  • the width of the groove can be from about 5 to 15 degrees and is preferably between 6 and 10 degrees.
  • the groove preferably has a cross-section which corresponds to between a one-third and a two-thirds circle, i.e. for example, a half-circle.
  • the steep rise of the trough can be from about 50 to 30 degrees ahead of the second guide strip.
  • the direction of the slope can form an angle of from about +10 to -10 degrees relative to an intersection line between the cutting edge and the contact area of the second guide strip, and preferably from +5 to -5 degrees relative to the connection line between the cutter edge and the second guide strip support face.
  • the slope can be provided by a planar surface.
  • the trough 8 can start in an area from about 45 to 90 degrees following the cutter edge and is preferably disposed in an area of from about 60 to 70 degrees relative to the cutter edge.
  • the initial form of this trough can correspond to a logarithmic spiral which begins at this point and which runs inwardly to the beginning point of the recited steep edge.
  • the trough 8 can be provided by a planar surface.
  • the first guide strip can be disposed at an angle from about 30 to 60 degrees relative to the cutter blade edge and is preferably disposed at an angle of from about 40 to 50 degrees relative to the cutter blade edge.
  • the extension of the groove 11 can start at a distance of from about one half to two times the thickness of the cutter blade relative to the end of the base body.
  • the diameter of the base body can correspond to 0.9 to 0.99 of the distance between the cutting edge and the support area of the second chip guide and is preferably from about 0.93 to 0.97 of the said distance.
  • the length of the guide strips can correspond to from about 1 to 2 times the diameter of the base body.
  • the guide strips preferably have an outer cylinder surface, which corresponds to a radius of curvature which is from about 0.3 to 0.9 and preferably 0.5 to 0.8 times one half of the distance between the cutter blade edge and the support face of the second guide chip.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Milling, Broaching, Filing, Reaming, And Others (AREA)
  • Vehicle Cleaning, Maintenance, Repair, Refitting, And Outriggers (AREA)
  • Earth Drilling (AREA)
US07/319,620 1988-03-05 1989-03-06 Single cut reamer with chip guiding device Expired - Lifetime US5125772A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3807224 1988-03-05
DE3807224A DE3807224C1 (zh) 1988-03-05 1988-03-05

Publications (1)

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US5125772A true US5125772A (en) 1992-06-30

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US07/319,620 Expired - Lifetime US5125772A (en) 1988-03-05 1989-03-06 Single cut reamer with chip guiding device

Country Status (6)

Country Link
US (1) US5125772A (zh)
EP (1) EP0331926B1 (zh)
JP (1) JPH01310815A (zh)
AT (1) ATE67703T1 (zh)
DE (2) DE3807224C1 (zh)
ES (1) ES2026705T3 (zh)

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5921727A (en) * 1998-01-20 1999-07-13 Cogsdill Tool Products, Inc. Reamer with friction resistant layer and method for forming same
US6033159A (en) * 1996-05-25 2000-03-07 Mapal Fabrik Fur Prazionswerk-Zeuge Dr. Kress Kg Material-removing precision machining tool
US6206617B1 (en) * 1998-02-09 2001-03-27 Fuji Seiko Limited Reamer with guide surface and method of finishing hole by using the same
KR20030018371A (ko) * 2001-08-28 2003-03-06 현대자동차주식회사 가이드 부착 리이머
US6602028B1 (en) * 1999-06-21 2003-08-05 Sandvik Aktiebolag Support pad for a deep hole drill
US6682275B1 (en) * 1999-06-21 2004-01-27 Sandvik Aktiebolag Deep hole drill
US20080047320A1 (en) * 2006-08-25 2008-02-28 Northrop Grumman Corporation Device and method for sequentially cold working and reaming a hole
JP2016010845A (ja) * 2014-06-30 2016-01-21 アイシン・エィ・ダブリュ株式会社 穴加工工具
US20190043627A1 (en) * 2016-02-12 2019-02-07 Framatome Device and method for underwater repair of hole of a nuclear reactor part

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19828691C2 (de) * 1998-06-26 2002-04-11 Manfred Kistler Entgratungsvorrichtung
DE102013202576B4 (de) * 2013-02-18 2015-05-13 Kennametal Inc. Zerspanungswerkzeug, insbesondere Reibwerkzeug sowie Verfahren zu seiner Herstellung

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DE313138C (zh) *
US2360385A (en) * 1941-03-08 1944-10-17 Blackhawk Mfg Co Drill
GB858800A (en) * 1957-01-09 1961-01-18 William George Hearsey Improvements in boring tools
US3320833A (en) * 1964-11-23 1967-05-23 Detroit Reamer & Tool Company Deep-hole drill and reamer
DE1922131A1 (de) * 1969-04-25 1970-10-29 Mapal Fabrik Fuer Praez Swerkz Maschinenreibahle
GB1435339A (en) * 1972-12-11 1976-05-12 Mapal Fab Praezision Reaming tools
US4133089A (en) * 1977-11-16 1979-01-09 Wilhelm Hegenscheidt Gmbh Combined precision boring and burnishing tool
US4279550A (en) * 1975-01-21 1981-07-21 Mapal Fabrik Fur Prazisionswerkzeuge Dr. Kress Kg Deep hole boring tool with replaceable blade
JPS60221210A (ja) * 1984-04-13 1985-11-05 Nippon Yakin:Kk 深孔切削用ドリル

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US2882765A (en) * 1956-03-27 1959-04-21 Rudolf W Andreasson Drills
CH645051A5 (en) * 1980-05-12 1984-09-14 Merz Ag Adjustable machine reamer

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE313138C (zh) *
US2360385A (en) * 1941-03-08 1944-10-17 Blackhawk Mfg Co Drill
GB858800A (en) * 1957-01-09 1961-01-18 William George Hearsey Improvements in boring tools
US3320833A (en) * 1964-11-23 1967-05-23 Detroit Reamer & Tool Company Deep-hole drill and reamer
DE1922131A1 (de) * 1969-04-25 1970-10-29 Mapal Fabrik Fuer Praez Swerkz Maschinenreibahle
GB1435339A (en) * 1972-12-11 1976-05-12 Mapal Fab Praezision Reaming tools
US4279550A (en) * 1975-01-21 1981-07-21 Mapal Fabrik Fur Prazisionswerkzeuge Dr. Kress Kg Deep hole boring tool with replaceable blade
US4133089A (en) * 1977-11-16 1979-01-09 Wilhelm Hegenscheidt Gmbh Combined precision boring and burnishing tool
JPS60221210A (ja) * 1984-04-13 1985-11-05 Nippon Yakin:Kk 深孔切削用ドリル

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6033159A (en) * 1996-05-25 2000-03-07 Mapal Fabrik Fur Prazionswerk-Zeuge Dr. Kress Kg Material-removing precision machining tool
US5921727A (en) * 1998-01-20 1999-07-13 Cogsdill Tool Products, Inc. Reamer with friction resistant layer and method for forming same
US6206617B1 (en) * 1998-02-09 2001-03-27 Fuji Seiko Limited Reamer with guide surface and method of finishing hole by using the same
US6602028B1 (en) * 1999-06-21 2003-08-05 Sandvik Aktiebolag Support pad for a deep hole drill
US6682275B1 (en) * 1999-06-21 2004-01-27 Sandvik Aktiebolag Deep hole drill
KR20030018371A (ko) * 2001-08-28 2003-03-06 현대자동차주식회사 가이드 부착 리이머
US20080047320A1 (en) * 2006-08-25 2008-02-28 Northrop Grumman Corporation Device and method for sequentially cold working and reaming a hole
US7770276B2 (en) * 2006-08-25 2010-08-10 Northrop Grumman Corporation Device and method for sequentially cold working and reaming a hole
JP2016010845A (ja) * 2014-06-30 2016-01-21 アイシン・エィ・ダブリュ株式会社 穴加工工具
US20190043627A1 (en) * 2016-02-12 2019-02-07 Framatome Device and method for underwater repair of hole of a nuclear reactor part
US11037689B2 (en) * 2016-02-12 2021-06-15 Framatome Device and method for underwater repair of hole of a nuclear reactor part

Also Published As

Publication number Publication date
EP0331926A1 (de) 1989-09-13
ES2026705T3 (es) 1992-05-01
DE3807224C1 (zh) 1989-04-20
JPH01310815A (ja) 1989-12-14
DE58900311D1 (de) 1991-10-31
EP0331926B1 (de) 1991-09-25
ATE67703T1 (de) 1991-10-15

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